vil_structuring_element.h File Reference

Structuring element for morphology represented as a list of non-zero pixels. More...

#include <vector>
#include <iosfwd>
#include <cstddef>

Go to the source code of this file.

Classes
class	vil_structuring_element
	Structuring element for morphology represented as a list of non-zero pixels. More...

Functions
std::ostream &	operator<< (std::ostream &, const vil_structuring_element &element)
	Write details to stream. More...
void	vil_compute_offsets (std::vector< std::ptrdiff_t > &offset, const vil_structuring_element &element, std::ptrdiff_t istep, std::ptrdiff_t jstep)
	Generate a list of offsets for use on image with istep,jstep. More...

Detailed Description

Structuring element for morphology represented as a list of non-zero pixels.

Author

Tim Cootes

Definition in file vil_structuring_element.h.

Function Documentation

operator<<()

std::ostream& operator<<	(	std::ostream &	,
		const vil_structuring_element &	element
	)

Write details to stream.

Definition at line 76 of file vil_structuring_element.cxx.

vil_compute_offsets()

void vil_compute_offsets	(	std::vector< std::ptrdiff_t > &	offset,
		const vil_structuring_element &	element,
		std::ptrdiff_t	istep,
		std::ptrdiff_t	jstep
	)

Generate a list of offsets for use on image with istep,jstep.

On exit offset[k] = element.p_i()[k]*istep + element.p_j()[k]*jstep Gives an efficient way of looping through all the pixels in the structuring element

Gives an efficient way of looping through all the pixels in the structuring element

Definition at line 88 of file vil_structuring_element.cxx.